1176-74-5 62637-91-6 70008-44-5 Benzoic acid, 2-((3,5-dibromo-4-hydroxyphenyl)(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene)methyl)-, ethyl ester, potassium salt EINECS 263-661-6 Potassium ethyl 2-((3,5-dibromo-4-oxidophenyl)(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene)methyl)benzoate